/Engine/Source/Runtime/Experimental/Chaos/Public/Chaos/Character/CharacterGroundConstraint.h
The maximum angle of slope that is considered walkable. The slope angle is defined as the angle between the ground normal and vertical axis. If the slope angle is greater than the maximum walkable slope angle the motion target vector is adjusted to stop movement up the slope
void SetMaxWalkableSlopeAngle ( const [FReal](API\Runtime\ChaosCore\Chaos\FReal) & Value )